// Copyright (c) 2022 CINN Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include <string>
#include <vector>

namespace cinn {
namespace auto_schedule {

/**
 * A C++ cost model virtual base class
 */
class CostModel {
 public:
  virtual void Train(const std::vector<std::vector<float>>& samples,
                     const std::vector<float>& labels) = 0;

  virtual std::vector<float> Predict(
      const std::vector<std::vector<float>>& samples) const = 0;

  virtual void Update(const std::vector<std::vector<float>>& samples,
                      const std::vector<float>& labels) = 0;

  virtual void Save(const std::string& path) = 0;

  virtual void Load(const std::string& path) = 0;
};

}  // namespace auto_schedule
}  // namespace cinn
